CN109506533B - Air spacing device for deep hole blasting charge - Google Patents
Air spacing device for deep hole blasting charge Download PDFInfo
- Publication number
- CN109506533B CN109506533B CN201811393361.1A CN201811393361A CN109506533B CN 109506533 B CN109506533 B CN 109506533B CN 201811393361 A CN201811393361 A CN 201811393361A CN 109506533 B CN109506533 B CN 109506533B
- Authority
- CN
- China
- Prior art keywords
- column casing
- hopper
- sliding grooves
- deep hole
- spout
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005422 blasting Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 abstract description 3
- 239000002360 explosive Substances 0.000 description 6
- 238000004880 explosion Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
Abstract
The invention relates to an air spacing device for deep hole blasting charge, and belongs to the technical field of blasting engineering auxiliary devices. The invention comprises a hopper and a column casing with a hollow structure, wherein the top of the column casing is of a full-opening structure, a plurality of groups of sliding grooves are arranged on the side wall of the column casing at intervals along the circumferential direction, each group of sliding grooves takes the top of the column casing as a starting point and is arranged parallel to the axial direction of the column casing, and the sliding groove strokes among different groups are different; the hopper cover is located in the column casing, and a set of spout corresponds a hopper, and the outside of hopper is provided with two piece at least trip, trip shape specification and spout looks adaptation for the hopper can slide to the spout end along the spout, and hang through the trip and locate on the lateral wall of column casing. The invention has low cost and convenient operation, and can improve the charging efficiency.
Description
Technical Field
The invention relates to an air spacing device for deep hole blasting charge, and belongs to the technical field of blasting engineering auxiliary devices.
Background
Drilling blasting is a common technique for excavating stone, and is widely applied to the fields of water conservancy and hydropower, mines, traffic and the like. The traditional continuous columnar explosive has the defects of high unit consumption, high detonation initial pressure, excessive crushing of rock, so that the effective energy utilization rate of the explosive is low, and the problems of large blocks and root easily generated, explosion vibration hazard and the like are caused. The air spaced charging technology can reduce the initial peak pressure of the explosive to the rock around the blast hole, so that the explosion pressure in the hole is distributed more uniformly along the axial direction of the blast hole, thereby reducing or avoiding excessive crushing of surrounding rock near the blast hole, expanding the range of a cracking area, improving the effective utilization rate of the explosion energy of the explosive, reducing the explosion cost and controlling the explosion hazard. The air spacing device is a spacer arranged between the air column and the explosive, and between the air column and the blocking stemming so as to bear the weight of the explosive and the stemming. The air spacer commonly used at present is an air bag, and has the advantages of high unit price, complex operation, reduced charging efficiency and increased blasting cost.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the air spacing device for deep hole blasting charge is low in cost and convenient to operate, so that the charge efficiency is improved, and the blasting cost is reduced.
The technical scheme adopted by the invention for solving the technical problems is as follows: the air spacing device for deep hole blasting charge comprises a hopper and a column casing with a hollow structure, wherein the top of the column casing is of a full-opening structure, a plurality of groups of sliding grooves are arranged on the side wall of the column casing at intervals along the circumferential direction, each group of sliding grooves takes the top end of the column casing as a starting point and is parallel to the axial direction of the column casing, and the sliding groove strokes among different groups are different; the hopper cover is located in the column casing, and a set of spout corresponds a hopper, and the outside of hopper is provided with two piece at least trip, trip shape specification and spout looks adaptation for the hopper can slide to the spout end along the spout, and hang through the trip and locate on the lateral wall of column casing.
Further is: the clamping hooks are two symmetrically arranged; the group of sliding grooves are two symmetrically arranged.
Further is: the bottom of the hopper is provided with a round hole matched with the detonating tube.
Further is: the hopper and the column casing are both made of PVC materials.
The beneficial effects of the invention are as follows: when the method is implemented, the outer diameter of the column casing is slightly smaller than the diameter of the blast hole, the travel of the chute is determined according to the spaced charging positions of the air, and the column casing and the hopper are manufactured in advance. During charging, the column casing is firstly placed into the blast hole, then one hopper is placed down along the chute with the longest travel, then charging is carried out, then the hopper is placed down along the chute with the second longest travel, then charging is carried out again until the uppermost hopper is placed down, and then filling materials are filled, so that the whole charging process is completed. The invention has low cost and convenient operation, and can improve the charging efficiency.
Drawings
FIG. 1 is a schematic view of a cartridge according to the present invention;
FIG. 2 is a schematic view of a hopper according to the present invention;
FIG. 3 is a schematic diagram of the overall structure of the present invention when implemented.
The marks in the figure: 1-column casing, 2-chute, 3-hopper, 4-trip, 5-detonating tube, 6-blast hole, 7-loading section, 8-air section, 9-blocking section, 10-detonator.
Detailed Description
For the purposes of facilitating understanding and practicing the invention, preferred embodiments of the invention are chosen to be further described in conjunction with the accompanying drawings.
As shown in fig. 1 to 3, the invention comprises a hopper 3 and a column casing 1 with a hollow structure, wherein the top of the column casing 1 is of a full-opening structure, a plurality of groups of sliding grooves 2 are arranged on the side wall of the column casing 1 at intervals along the circumferential direction, each group of sliding grooves 2 takes the top end of the column casing 1 as a starting point and is arranged in parallel with the axial direction of the column casing 1, and the sliding grooves 2 between different groups have different strokes; the hopper 3 cover is located in the column casing 1, and a set of spout 2 corresponds a hopper 3, and the outside of hopper 3 is provided with two piece at least trip 4, trip 4 shape specification and spout 2 looks adaptation for hopper 3 can slide to spout 2 end along spout 2, and hang through trip 4 and locate on the lateral wall of column casing 1. The chute 2 may be an opening structure penetrating through the side wall of the column casing 1, or may be a U-shaped chute structure disposed on the inner wall of the column casing 1.
In order to make the structure simple and reliable, the clamping hook 4 is two symmetrically arranged pieces; the group of sliding grooves 2 are two symmetrically arranged. Both the hopper 3 and the column casing 1 can be made of PVC materials.
In order to facilitate the detonating tube 5 to pass through the hopper, a round hole matched with the detonating tube 5 is arranged at the bottom of the hopper 3.
In implementation, the outer diameter of the column casing 1 is slightly smaller than the diameter of the blast hole 6, the travel of the chute 2 is determined according to the air spaced charging position, and the column casing 1 and the hopper 3 are manufactured in advance. During charging, the column casing 1 is placed into the blast hole 6, then one hopper 3 is placed down along the chute 2 with the longest travel, then charging is performed, then the hopper 3 is placed down along the chute 2 with the second longest travel, then charging is performed again until the uppermost hopper 3 is placed down, and then filling materials are filled, so that the whole charging process is completed.
Claims (4)
1. Air spacer for deep hole blasting charge, characterized in that: the automatic feeding device comprises a hopper (3) and a column casing (1) with a hollow structure, wherein the top of the column casing (1) is of a full-opening structure, a plurality of groups of sliding grooves (2) are formed in the side wall of the column casing (1) at intervals along the circumferential direction, each group of sliding grooves (2) is arranged parallel to the axis direction of the column casing (1) by taking the top of the column casing (1) as a starting point, and the sliding grooves (2) between different groups have different strokes; the hopper (3) is sleeved in the column casing (1), one group of sliding grooves (2) corresponds to one hopper (3), at least two clamping hooks (4) are arranged on the outer side of the hopper (3), the shape and the specification of the clamping hooks (4) are matched with those of the sliding grooves (2), and the hopper (3) can slide to the tail end of the sliding grooves (2) along the sliding grooves (2) and is hung on the side wall of the column casing (1) through the clamping hooks (4).
2. The air spacing device for deep hole blasting charge according to claim 1, wherein the clamping hooks (4) are two symmetrically arranged pieces; the group of sliding grooves (2) are two symmetrically arranged.
3. The air spacing device for deep hole blasting charges according to claim 1, wherein a round hole matched with the detonating tube (5) is formed at the bottom of the hopper (3).
4. An air spacer for deep hole blasting charges according to any of claims 1 to 3, wherein the hopper (3) and the cartridge (1) are both of PVC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811393361.1A CN109506533B (en) | 2018-11-21 | 2018-11-21 | Air spacing device for deep hole blasting charge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811393361.1A CN109506533B (en) | 2018-11-21 | 2018-11-21 | Air spacing device for deep hole blasting charge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109506533A CN109506533A (en) | 2019-03-22 |
| CN109506533B true CN109506533B (en) | 2024-01-23 |
Family
ID=65749432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811393361.1A Active CN109506533B (en) | 2018-11-21 | 2018-11-21 | Air spacing device for deep hole blasting charge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109506533B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186342A (en) * | 2019-06-04 | 2019-08-30 | 中国电建集团成都勘测设计研究院有限公司 | Air-spacer for Long-hole Bench Blasting |
| CN112964145B (en) * | 2021-03-10 | 2022-07-22 | 惠州中特特种爆破技术工程有限公司 | Efficient air interval type explosive charging device and explosive charging mode |
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| CN109506533A (en) | 2019-03-22 |
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